-
Subject Area
-
Physics
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A0000 General
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A1000 The physics of elementary particles and fields
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A2000 Nuclear physics
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A3000 Atomic and molecular physics
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A3100 Theory of atoms and molecules
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A3200 Atomic spectra and interactions with photons
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A3300 Molecular spectra and interactions with photons
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A3400 Atomic and molecular collision processes and interactions
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A3500 Properties of atoms and molecules; instruments and techniques
-
A3510 Atomic properties
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A3520 Molecular properties
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A3520B General molecular conformation and symmetry;
stereochemistry
-
A3520D Interatomic distances and angles in molecules
-
A3520G Molecular bond strengths, dissociation
energies, hydrogen bonding
-
A3520J Molecular barrier heights (internal rotation,
inversion); rotational isomerism, conformational
dynamics
-
A3520M Molecular electric and magnetic moments
(and derivatives), polarizability, and magnetic
susceptibility
-
A3520P Molecular rotation, vibration, and vibration-rotation
constants
-
A3520S Molecular hyperfine and fine-structure
constants
-
A3520V Molecular ionization potentials, electron
affinities, molecular core binding energy
-
A3520W Molecular weak interactions
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A3520X Molecular mass spectra
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A3520Y Correlation times in molecular dynamics
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A3580 Atomic and molecular measurements and techniques
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A3600 Studies of special atoms and molecules
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A4000 Fundamental areas of phenomenology
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A4100 Electricity and magnetism; fields and charged particles
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A4200 Optics
-
A4215 Geometrical optics
-
A4225 Physical optics
-
A4230 Optical information, image formation and analysis
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A4240 Holography
-
A4250 Quantum optics
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A4252 Masers
-
A4255 Lasing processes
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A4260 Laser optical systems: design and
operation
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A4262 Laser applications
-
A4265 Nonlinear optics
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A4270 Optical materials
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A4272 Optical sources
and standards
-
A4280 Optical elements,
devices and systems
-
A4280A Optical
lenses
and mirrors
-
A4280B Spatial
filters,
zone
plates,
and polarizers
-
A4280C Spectral
and other
filters
-
A4280D Optical
monochromators
-
A4280E Optical
shutters,
windows,
diaphragms,
deflectors,
choppers,
and scanners
-
A4280F Gratings,
echelles
-
A4280G Optical
prisms
and projection
systems
-
A4280H Optical
beam
splitters
-
A4280J Optical
collimators
and autocollimators
-
A4280K Optical
beam
modulators
-
A4280L Optical
waveguides
and couplers
-
A4280M Optical
switches
-
A4280N Schlieren
devices
-
A4280P Optical
rangefinders
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A4280Q Image
detectors,
convertors,
and intensifiers
-
A4280R Gradient-index
(GRIN)
devices
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A4280S Optical
communication
devices,
equipment
and systems
-
A4280T Optical
storage
and retrieval
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A4280V Optical
computers,
logic
elements,
and interconnects
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A4280W Ultrafast
optical
techniques
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A4280X Optical
coatings
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A4280Y Solar
collectors,
concentrators
and control
films:
optical
aspects
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A4281B Optical
fibre
fabrication,
cladding,
splicing,
joining
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A4281C Optical
fibre
testing
and measurement
of fibre
parameters
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A4281D Optical
propagation,
dispersion
and attenuation
in fibres
-
A4281F Other
fibre
optical
properties
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A4281H Gradient-index
(GRIN)
fibre
devices
and techniques
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A4281M Fibre
couplers
and connectors
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A4281P Fibre
optic
sensors;
fibre
gyros
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A4281W Other
fibre
optical
devices
and techniques
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A4285D Optical
fabrication,
surface
grinding
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A4285F Optical
testing
techniques
-
A4281 Fibre optics
and fibre
waveguides
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A4282 Integrated
optics
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A4283
Micro-optical
devices
and
technology
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A4284
Nanophotonic
devices
and
technology
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A4285
Optical
testing
and
workshop
techniques
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A4290
Other
topics
in
optics
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A4300 Acoustics
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A4400 Heat flow, thermal and thermodynamic processes
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A4600 Mechanics, elasticity, rheology
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A4610 Mechanics of discrete systems
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A4620 Continuum mechanics
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A4630 Mechanics of solids
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A4630C Elasticity
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A4630J Viscoelasticity, plasticity, viscoplasticity,
creep, and stress relaxation
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A4630L Buckling and instability
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A4630M Vibrations, aeroelasticity, hydroelasticity,
mechanical waves, and shocks
-
A4630N Fracture mechanics, fatigue, and
cracks
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A4630P Friction, wear, adherence, hardness,
mechanical contacts
-
A4630R Mechanical measurement methods
and techniques for solids
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A4660 Rheology of fluids and pastes
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A4690 Other topics in mechanics, elasticity,
and rheology
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A4700 Fluid dynamics
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A5000 Fluids, plasmas and electric discharges
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A5100 Kinetic and transport theory of fluids; physical properties of gases
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A5200 The physics of plasmas and electric discharges
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A5220 Elementary processes in plasma
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A5225 Plasma properties
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A5230 Plasma flow; magnetohydrodynamics
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A5235 Waves, oscillations, and instabilities in plasma
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A5240 Plasma interactions
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A5250 Plasma production and heating
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A5250D Plasma sources
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A5250G Plasma heating
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A5250J Plasma production and heating
by laser beams
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A5250L Plasma production and heating
by shock waves and compression
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A5255D General theory of plasma confinement
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A5255E Pinch effect and pinch machines
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A5255G Plasma in torus (stellarator,
tokamak, etc.)
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A5255K Magnetic traps (e.g., Astron,
helitron, mirror, cusp, etc.)
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A5255M Nonmagnetic plasma confinement
systems (e.g. electrostatic,
inertial, high frequency and
laser confinement, etc.)
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A5255P Confinement in fusion experiments
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A5255 Plasma equilibrium and confinement
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A5255D General theory of plasma
confinement
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A5255E Pinch effect and pinch
machines
-
A5255G Plasma in torus (stellarator,
tokamak, etc.)
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A5255K Magnetic traps (e.g.,
Astron, helitron, mirror,
cusp, etc.)
-
A5255M Nonmagnetic plasma confinement
systems (e.g. electrostatic,
inertial, high frequency
and laser confinement, etc.)
-
A5255P Confinement in fusion
experiments
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A5260 Relativistic plasma
-
A5265 Plasma simulation
-
A5270 Plasma diagnostic techniques
and instrumentation
-
A5275 Plasma devices
and applications
-
A5280 Electric discharges
-
A5290 Other topics
in plasma
physics and
electric
discharges
-
A6000 Condensed matter: structure, thermal and mechanical properties
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A6100 Structure of liquids and solids; crystallography
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A6200 Mechanical and acoustic properties of condensed matter
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A6300 Lattice dynamics and crystal statistics
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A6400 Equations of state, phase equilibria, and phase transitions
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A6500 Thermal properties of condensed matter
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A6600 Transport properties of condensed matter (nonelectronic)
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A6700 Quantum fluids and solids; liquid and solid
helium
-
A6800 Surfaces and interfaces; thin films
and whiskers
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A6810 Fluid surfaces and interfaces
with fluids
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A6810C Fluid surface energy
(surface tension, interface
tension, angle of contact,
etc.)
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A6810E Fluid interface elasticity,
viscosity, and viscoelasticity
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A6810G Fluid interface activity,
spreading
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A6810J Fluid kinetics (evaporation,
adsorption, condensation,
catalysis, etc.)
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A6815 Liquid thin films
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A6817 Monolayers and Langmuir-Blodgett
films
-
A6820 Solid surface structure
-
A6822 Surface diffusion,
segregation and
interfacial compound
formation
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A6825 Mechanical
and acoustical
properties
of solid
surfaces
and interfaces
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A6830 Dynamics
of solid
surfaces
and interface
vibrations
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A6840
Surface
energy
of
solids;
thermodynamic
properties
-
A6842
Surface
phase
transitions
and
critical
phenomena
-
A6845
Solid-fluid
interface
processes
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A6848
Solid-solid
interfaces
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A6855
Thin
film
growth,
structure,
and
epitaxy
-
A6860
Physical
properties
of
thin
films,
nonelectronic
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A6865
Low-dimensional
structures:
growth,
structure
and
nonelectronic
properties
-
A6870
Whiskers
and
dendrites:
growth,
structure,
and
nonelectronic
properties
-
A6890
Other
topics
in
the
structure
and
nonelectronic
properties
of
surfaces
and
thin
films
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A7000 Condensed matter: electronic structure, electrical, magnetic, and optical
properties
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A8000 Cross-disciplinary physics and related areas of science and technology
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A8100 Materials science
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A8200 Physical chemistry
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A8220 Chemical kinetics
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A8230 Specific chemical reactions; reaction mechanisms
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A8230C Atom and radical reactions (with
themselves or with molecules)
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A8230E Molecule-molecule reactions
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A8230F Ion-molecule, ion-ion, and charge-transfer
reactions
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A8230H Chemical exchanges (substitution,
atom transfer, abstraction, disproportionation,
and group exchange)
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A8230L Decomposition reactions (pyrolysis,
dissociation, and group ejection)
-
A8230N Association, addition, and insertion
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A8230Q Isomerization and rearrangement
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A8230S Chain reactions
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A8230V Homogeneous catalysis
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A8235 Polymer reactions and polymerization
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A8240 Chemical kinetics and reactions:
special regimes
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A8245 Electrochemistry and electrophoresis
-
A8250 Photochemistry and radiation
chemistry
-
A8255 Radiochemistry
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A8260 Chemical thermodynamics
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A8265 Surface chemistry
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A8270 Disperse
systems
-
A8280 Chemical
analysis
and related
physical
methods
of analysis
-
A8285
Physical
chemistry
aspects
of
chemical
technology
-
A8290
Other
topics
in
physical
chemistry
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A8600 Energy research and environmental science
-
A8700 Biophysics, medical physics, and biomedical
engineering
-
A8710 General, theoretical, and mathematical
biophysics
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A8715 Molecular biophysics
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A8716 Biothermics
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A8720 Membrane biophysics
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A8725 Cellular biophysics
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A8728 Bioelectricity
-
A8730 Biophysics
of neurophysiological
processes
-
A8732 Physiological
optics, vision
-
A8734 Audition
-
A8736
Speech
and
biocommunications
-
A8738
Mechano-
and
chemio-ceptions
-
A8740
Biomagnetism
-
A8745
Biomechanics,
biorheology,
biological
fluid
dynamics
-
A8750
Biological
effects
of
radiations
-
A8760
Medical
and
biomedical
uses
of
fields,
radiations,
and
radioactivity;
health
physics
-
A8765
Aerospace
biophysics
and
medical
physics
(effects
of
accelerations,
weightlessness
and
environment)
-
A8770
Biomedical
engineering
-
A8780
Biophysical
instrumentation
and
techniques
-
A8783
Nanotechnology
applications
in
biomedicine
-
A8790
Other
topics
in
biophysics,
medical
physics,
and
biomedical
engineering
-
A9000 Geophysics, astronomy and astrophysics
-
A9100 Solid Earth physics
-
A9200 Hydrospheric and lower atmospheric physics
-
A9210 Physics of the oceans
-
A9220 Interdisciplinary aspects of oceanography
-
A9240 Hydrology and glaciology
-
A9260 Lower atmosphere
-
A9260B General atmospheric
circulation
-
A9260C Synoptic and mesoscale
atmospheric phenomena
-
A9260D Gravity waves, tides,
and compressional waves
in the lower atmosphere
-
A9260E Convection, turbulence,
and diffusion in the
lower atmosphere
-
A9260F Atmospheric boundary
layer structure and processes
-
A9260G Winds and their effects
in the lower atmosphere
-
A9260H Chemical composition
and chemical interactions
in the lower atmosphere
-
A9260J Water in the atmosphere
(humidity, clouds, evaporation,
precipitation)
-
A9260K Temperature of the
lower atmosphere
-
A9260L Ionic interactions
and processes in the
lower atmosphere
-
A9260M Particles and aerosols
in the lower atmosphere
-
A9260N Cloud physics
-
A9260P Atmospheric electricity
-
A9260Q Atmospheric storms
-
A9260S Climatology
-
A9260T Air quality and air
pollution
-
A9260V Electromagnetic wave
propagation and interactions
in the lower atmosphere
-
A9260W Sunlight and atmospheric
radiation
-
A9260X Weather analysis and
prediction
-
A9260Y Meteorological applications
-
A9260Z Palaeo-atmosphere
-
A9265D Atmospheric optical
propagation, radiative
transfer
-
A9265H Atmospheric spectral
energy distribution,
spectral absorption
-
A9265M Atmospheric optical
scattering, polarization
-
A9265R Atmospheric laser
beam propagation
-
A9265S Atmospheric optical
imaging
-
A9265T Atmospheric optical
modulation transfer
-
A9265V Clouds, fog, haze,
aerosols, effects of
pollution on atmospheric
optics
-
A9265 Atmospheric optics
-
A9290 Other topics in hydrospheric
and atmospheric physics
-
A9300 Geophysical observations, instrumentation,
and techniques
-
A9400 Aeronomy, space physics, and cosmic rays
-
A9410 Neutral upper atmosphere
-
A9410B General properties of
the upper atmosphere
-
A9410D Structure, pressure, density,
and temperature of the upper
atmosphere
-
A9410F Chemical composition and
chemical interactions in
the upper atmosphere
-
A9410G Electromagnetic wave propagation
and interactions in the upper
atmosphere
-
A9410J Tides, waves, winds, and
circulation in the upper
atmosphere
-
A9410L Convection, diffusion,
mixing, and turbulence in
the upper atmosphere
-
A9410N Dust and aerosols in the
upper atmosphere
-
A9410Q Airglow, nightglow, and
geocorona
-
A9410S Aurora
-
A9420 Ionosphere
-
A9430 Magnetosphere
-
A9440 Cosmic rays
-
A9460 Interplanetary
space
-
A9480 Instrumentation
and techniques
for aeronomy,
space physics,
and cosmic rays
-
A9490 Other topics
in aeronomy,
space physics,
and cosmic
rays
-
A9500 Fundamental astronomy and astrophysics,
instrumentation and techniques and astronomical
observations
-
A9600 Solar system
-
A9700 Stars
-
A9710 Stellar characteristics
-
A9710B Star formation
-
A9710C Stellar interiors,
evolution, nucleosynthesis,
and ages
-
A9710E Stellar atmospheres,
radiative transfer,
opacity, and
line formation
-
A9710F Circumstellar
shells and expanding
envelopes
-
A9710H Stellar mass
transfer
-
A9710K Stellar rotation
-
A9710L Stellar magnetic
and electric
fields
-
A9710N Stellar masses
-
A9710Q Stellar diameters
and surface features;
oscillations
-
A9710R Stellar radiation
and spectra
-
A9710T Stellar abundances
and chemical
composition
-
A9710V Stellar distances,
parallaxes, and
space density
-
A9710W Stellar space
motions (proper
motions, radial
velocities, and
orbits)
-
A9720 Normal stars (by
class): general or
individual
-
A9730 Variable and
peculiar stars
-
A9760 Late stages
of stellar
evolution
-
A9780 Binary
and multiple
stars
-
A9785
Extrasolar
planetary
systems
-
A9790
Other
topics
in
stellar
astronomy
-
A9800 Stellar systems; Galactic
and extragalactic objects
and systems; Universe
-
A9810 Stellar dynamics
-
A9820 Stellar clusters
and associations
-
A9840 Interstellar
medium; nebulae
-
A9850 The
Galaxy,
extragalactic
objects
and systems
-
A9850B
Origin,
evolution,
and
ages
of
galaxies
-
A9850C
General
parameters,
classifications
of
galaxies
-
A9850D
Kinematics,
dynamics,
and
rotation
of
galaxies
-
A9850E
Galactic
structure,
content
and
morphology
-
A9850F
Masses
of
galaxies
-
A9850G
Radiation
and
spectra
of
galaxies
-
A9850H
Red
shift,
distances,
and
spatial
distribution
of
galaxies
-
A9850K
Groups,
clusters,
and
superclusters
of
galaxies
-
A9850L
The
Galaxy
-
A9850M
Local
Group
of
galaxies
-
A9850R
Active
and
peculiar
galaxies
-
A9850S
Radiogalaxies
-
A9850T
Intergalactic
and
intracluster
matter
-
A9870
Other
astronomical
sources
and
radiations
-
A9880
Cosmology
-
A9890
Other
topics
in
galactic
and
extragalactic
astronomy
-
Electrical Engineering and electronics
-
Computing and Control
-
Information Technology for Buisness
-
Mechanical and Production Engineering